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Type:
Improvement
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: Cursors
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Storage Engines, Storage Engines - Foundations
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SE Foundations - 2025-08-01, SE Foundations - 2025-07-18
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8
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Disag_M9
The current cursor caching in WT only caches URIs that start with "file:" or "simple tables" (table: URIs that have no indices or column groups). We may get better performance if we can cache "layered:" tables too. Putting a "layered:" cursor in cache will mean closing (caching) the constituent cursors: ingest and stable.
If we're already caching the constituent cursors, it's not clear how much of a boost this would be, but it probably avoids some config parsing, allocating the WT_CURSOR_LAYERED struct, looking up the dhandle. So probably enough to be noticeable for workloads that use lots of collections, rather than a small number of collections.
- is related to
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WT-1228 Improve performance of WT_SESSION::open_cursor
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- Closed
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- related to
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WT-15078 session_get_dhandle returning EBUSY leaves hanging handle
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- Open
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- Closed
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- Open
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- Closed
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- Open
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